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More information about our Instrument Makers
Including: process information, capabilities, turn around time, and qualityRead More
Aerial Contact Angle Goniometer
Measurement system for drop shape analysis on micrometer scale sessile drops from an aerial point of view (ideal CA range: 15°-165°).
Industrial Partners: Intel, Center for Precision Metrology
Status: IP protection phase
Low-Cost Scanning Confocal Microscope
This instrument uses a confocal imaging sensor for the direct measurement of curvature on surfaces using the principal of the evolute.
Confocal Curvature Sensor
An economical confocal imaging sensor that simultaneously images in the lateral plane and measures relative height of specific features.
Motorized Vacuum feed through
An economical high vacuum, high temperature solution for in-situ optical fiber rotation during plasma assisted chemical vapor deposition.
Industrial Partners: UNC Charlotte
Nanopositioner to compensate for creep in research related experiments. Specifications include: 50 millimeter cubic envelope with 25 millimeter centered cubic space for metrology. six DOF with 50 micrometer linear displacement and 50 arcsecond rotation capabilities.
Wave-guide cooling block
Cooling block for fusion bonded waveguide materials research. Features include: elaborate internal passages for even heat dissipation and kinematic design for stress relief under clamping conditions.
More information about our research
IPE conducts a range of research in the areas of precision engineering and engineering metrologyRead More
Evolute surfaces in Metrology
In the context of the design, characterization, and manufacture of engineered surfaces, the evolute surface is highly sensitive to changes in curvature and therefore, if the corresponding evolute geometry can measured, the functional surface can be controlled to higher tolerances.
Interfacial energy in capillary systems
Development of new measurement techniques for liquid-solid surface interactions with evaluation of process sensitivities and uncertainties.
Industrial Partners:Intel, Center for Precision Metrology
Vortex machining is a process that utilizes vortices in colloidal abrasive slurry to remove material in localized regions. Typical material removal footprints have micrometer sized lateral dimensions and nanometer depths with volumetric removal rates near 20 cubic micrometers per hour.
Relevant Publication List
- Stuart T. Smith, Jacob W. Chesna, Tsing-Hua Her. "Methods of determining the shape of a sessile drop" U.S. Patent US 2016/0123725 A1, issued 2017-10-17.
- Jacob W. Chesna, Bob F Wiedmaier, Jinlin Wang, Ayman Samara, Richard K Leach, Tsing-Hua Her, Stuart T Smith. "Aerial wetting contact angle measurement using confocal microscopy" (2016) Aerial wetting contact angle measurement using confocal microscopy. Measurement Science and Technology, 27 (12). ISSN 1361-6501
- Jacob W. Chesna, Dirk Schoellner. "Evolute of a Surface as a Utility for Specification, Characterization and Measurement of Freeform Surfaces" (2014) Proc. of American Society for Precision Engineering (ASPE) Conference pages 465-468.
- Stephen C. Howard, Jacob W. Chesna, Brigid A. Mullany, Stuart T. Smith. "On the Development of an Experimental Testing Platform for the Vortex Machining Process", Journal of Manufacturing Science and Engineering October 2013, Vol. 135, 0510051-0510058.
- Jacob W. Chesna, Ryan I. Rivers, Stuart T. Smith, Tsing-Hua Her, and Ayman M. Samara. "Performance Evaluation of a Sessile Drop Deposition Process" (2013), Proc. of American Society for Precision Engineering (ASPE) Conference, pages 528-532.
- Jacob W. Chesna, Yuki Shimizu, Richard K. Leach. "On the Use of Mercury Sessile Drops as Reference Artefacts for the Calibration of Optical Surface Topography Measuring Instruments" (2013), Proc. of American Society for Precision Engineering (ASPE) Conference, pages 74-78.
- Jacob W. Chesna, Ryan I. Rivers, Stuart T. Smith, Tsing-Hua Her, and Ayman M. Samara. "Reducing uncertainty of wettability measurements through controlled sessile droplet deposition: Current issues" (2012), Proc. of American Society for Precision Engineering (ASPE) Conference, pages 472-475.
- Jacob W. Chesna, Stuart T. Smith, D. J. Hastings, Borja de la Maza, Bartoz K. Nowakowski, Feilong Lin. "Development of a Micro-scale Assembly Facility with a Three Fingered, Self-aware Assembly Tool and Electro-chemical Etching Capabilities" (2012), Proc. of the 6th International Precision Assembly Seminar (IPAS) Conference, pages 1-8.
- Stephen C. Howard, Jacob W. Chesna, Brigid A. Mullany, Stuart T. Smith. "Preliminary Characterization of Vortex Machining" (2012), Proc. of European Society for Precision Engineering and Nanotechnology (EUSPEN) 12th International Conference, pages 50-53.
- Stephen C. Howard, Jacob W. Chesna, Brigid A. Mullany, Stuart T. Smith. "Observations During Vortex Machining Process Development" (2012), Proc. of the American Society of Mechanical Engineers (ASME) International Manufacturing Science and Engineering Conference.
- Stephen C. Howard, Jacob W. Chesna, Brigid A. Mullany, Stuart T. Smith. "Subcomponent Developments for a Vortex Machining Test Facility" (2011), Proc. of American Society for Precision Engineering (ASPE) Conference, pages 365-368.